ORA-28575:无法打开与外部过程代理程序的RPC连接解决
1. 修改listener.ora文件，增加如下内容，注意该库位于SDE的安装目录下的bin目录下：
(ENVS = "EXTPROC_DLLS=C:\Program Files\ArcGIS\ArcSDoracle账号E\ora10gexe\bin\st_shapelib.dll")--listener.ora:SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (GLOBAL_DBNAME = ngrm) (ORACLE_HOME = D:\oracle\product\10.2.0\db_1) (SID_NAME = ngrm) ) (SID_DESC = (GLOBAL_DBNAME = topodb) (ORACLE_HOME = D:\oracle\product\10.2.0\db_1) (SID_NAME = topodb) ) (SID_DESC = (SID_NAME = PLSExtProc) (ORACLE_HOME = D:\oracle\product\10.2.0\db_1) (PROGRAM = extproc) (ENVS = "EXTPROC_DLLS=C:\Program Files\ArcGIS\ArcSDE\ora10gexe\bin\st_shapelib.dll") ) )
2. 修改tnsnames.ora文件，添加如下一行，注意listener和tnsnames中的KEY值要匹配上:
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.205.41)(PORT = 1521))--tnsnames.ora:EXTPROC_CONNECTION_DATA = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1)) (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.205.41)(PORT = 1521)) ) (CONNECT_DATA = (SID = PLSExtProc) (PRESENTATION = RO) ) )
重启服务。